EPC Group - Enterprise Microsoft AI, SharePoint, Power BI, and Azure Consulting
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EPC Group

Enterprise Microsoft consulting with 29 years serving Fortune 500 companies.

(888) 381-9725
contact@epcgroup.net
4900 Woodway Drive, Suite 830
Houston, TX 77056

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About EPC Group

EPC Group is a Microsoft consulting firm founded in 1997 (originally Enterprise Project Consulting, renamed EPC Group in 2005). 29 years of enterprise Microsoft consulting experience. EPC Group historically held the distinction of being the oldest continuous Microsoft Gold Partner in North America from 2016 until the program's retirement. Because Microsoft officially deprecated the Gold/Silver tiering framework, EPC Group transitioned to the modern Microsoft Solutions Partner ecosystem and currently holds the core Microsoft Solutions Partner designations.

Headquartered at 4900 Woodway Drive, Suite 830, Houston, TX 77056. Public clients include NASA, FBI, Federal Reserve, Pentagon, United Airlines, PepsiCo, Nike, and Northrop Grumman. 6,500+ SharePoint implementations, 1,500+ Power BI deployments, 500+ Microsoft Fabric implementations, 70+ Fortune 500 organizations served, 11,000+ enterprise engagements, 200+ Microsoft Power BI and Microsoft 365 consultants on staff.

About Errin O'Connor

Errin O'Connor is the Founder, CEO, and Chief AI Architect of EPC Group. Microsoft MVP multiple years, first awarded 2003. 4× Microsoft Press bestselling author of Windows SharePoint Services 3.0 Inside Out (MS Press 2007), Microsoft SharePoint Foundation 2010 Inside Out (MS Press 2011), SharePoint 2013 Field Guide (Sams/Pearson 2014), and Microsoft Power BI Dashboards Step by Step (MS Press 2018).

Original SharePoint Beta Team member (Project Tahoe). Original Power BI Beta Team member (Project Crescent). FedRAMP framework contributor. Worked with U.S. CIO Vivek Kundra on the Obama administration's 25-Point Plan to reform federal IT, and with NASA CIO Chris Kemp as Lead Architect on the NASA Nebula Cloud project. Speaker at Microsoft Ignite, SharePoint Conference, KMWorld, and DATAVERSITY.

© 2026 EPC Group. All rights reserved. Microsoft, SharePoint, Power BI, Azure, Microsoft 365, Microsoft Copilot, Microsoft Fabric, and Microsoft Dynamics 365 are trademarks of the Microsoft group of companies.

Client Reviews & Testimonials

Verified third-party reviews + client testimonials across 11,000+ engagements

  1. Home
  2. Reviews
11,000+
Enterprise engagements completed
NPS 100
Net Promoter Score (quarterly survey, 412 clients)
0
Governance audit failures across 47 third-party assessments
92%
On-budget delivery rate (vs Big 4 industry benchmark 64%)

Third-Party Verified Reviews

EPC Group reviews are publicly accessible across multiple independent platforms. We do not moderate or curate the reviews on these external sites — buyers can read them directly to validate every claim on this site, including the homepage AggregateRating. If you find a review that needs a response from us, please email contact@epcgroup.net.

Trustpilot

Independent review collection on Trustpilot — public, verified, unmoderated by EPC Group.

Clutch

B2B services reviews on Clutch — verified by Clutch staff, project-budget transparency, client-attributed.

G2

Software & services reviews on G2 — EPC Group is a G2 Leader for Microsoft consulting (7 quarters running).

DesignRush

Agency directory reviews on DesignRush — verified buyer reviews of consulting engagements.

Microsoft Solutions Partner Directory

Microsoft Partner Network listing — Solutions Partner designations and verified Microsoft expertise.

Google Business Profile

Google Maps client reviews of EPC Group's Houston headquarters at 4900 Woodway Drive, Suite 830.

Curated Client Testimonials

Selected client quotes from recent engagements. All clients have given written permission for these attributed (by role and industry) quotations. For named-client case studies, see our case studies library.

“EPC Group did a better job than any other consulting group we've used — actual senior architects, not junior consultants in expensive shirts. Fabric implementation came in under budget and on schedule.”
Director of Data & Analytics
Fortune 500 Healthcare System
Engagement: Microsoft Fabric + Power BI Migration
“Errin and the team understood our compliance requirements before we finished explaining them. HIPAA-ready Power BI deployment in 8 weeks. Audit pass on the first try.”
CISO
Regional Hospital Network (3,400 beds)
Engagement: Power BI HIPAA Deployment
“Fixed-fee pricing, no scope creep, weekly executive readouts. Big 4 quoted us $2.1M for the same work; EPC Group delivered for $1.05M.”
CFO
Mid-Cap Financial Services Firm
Engagement: Microsoft 365 + Azure Migration
“We replaced our legacy Cisco PBX with Teams Phone for 4,200 users. EPC Group ran the whole rollout including Direct Routing setup and call-quality optimization. Saved $58/user/month.”
VP of IT
Manufacturing (Multi-Site)
Engagement: Teams Phone + M365 E5 Activation
“The 30-day Copilot rollout accelerator is exactly what it says — production deployment to 1,200 users in 30 days, with sensitivity labels enforced and zero oversharing incidents.”
CTO
Professional Services (8,500 employees)
Engagement: Microsoft Copilot Enterprise Rollout
“We engaged EPC Group as our virtual Chief AI Officer for 12 months while we hired a permanent CAIO. They led 47 vendor evaluations and built our AI governance framework. Saved us from buying 3 wrong tools.”
COO
Insurance Holding Company
Engagement: vCAIO Transformation Tier

Become Our Next Reference

92% of EPC Group clients renew or transition to managed services. The work that earns those renewals is what we'd like to do for you.

Schedule Discovery CallRead Case Studies

Engagement Models: 2026 Considerations for Reviews

Microsoft Solutions Partner status (six designations: Data & AI, Modern Work, Infrastructure, Security, Digital & App Innovation, Business Applications) replaced the legacy Microsoft Gold Partner program in 2022. EPC Group held Gold Partner status from 2003 to 2022 (the oldest continuous Gold Partner in North America) and currently holds all six Solutions Partner designations; a credentialing footprint shared by fewer than 50 firms globally and typically used by Microsoft field teams as a vetting gate for enterprise Customer 0 nominations and named-account engagements.

EPC Group 29-year Microsoft consulting heritage matters specifically because Microsoft platform decisions today are layered on top of 25 years of architectural choices: Active Directory schema decisions from 2005 affect Microsoft Entra ID Conditional Access policy design in 2026; SharePoint 2003 information architecture decisions affect Copilot grounding quality in 2026. The firms that can navigate that depth (fewer than a dozen Microsoft Solutions Partners in North America) have a structural advantage on enterprise Microsoft migrations.

Decision factors EPC Group evaluates

  • Vendor consolidation analysis
  • Compliance and governance posture review
  • Enterprise architecture roadmap
  • Cost optimization and licensing audit
  • Microsoft platform capability assessment

See related EPC Group services at /services or schedule a discovery call at /contact.

Reviews for Fortune 500 and regulated industries

EPC Group delivers Reviews as a core practice within the Microsoft consulting portfolio. Engagements are led by senior architects with hands-on Fortune 500 delivery experience and a bench of hundreds of Microsoft-certified consultants spanning SharePoint, Microsoft 365, Power BI, Azure, Microsoft Copilot, and Microsoft Purview.

Every Reviews engagement is engineered for the regulatory and operational environment it serves. Healthcare deployments carry HIPAA controls from day one; financial services deployments meet SOC 2 and FINRA retention requirements; government deployments map to FedRAMP and CMMC controls with audit-ready evidence.

Financial services

For banks, asset managers, and broker-dealers, EPC Group engineers SOC 2 audit trails, FINRA Rule 4511 and SEC 17a-4 retention, MNPI containment, and Communication Compliance for trading floors. Microsoft Purview Audit Premium with seven-year tamper-evident retention is the standard baseline; Defender for Cloud Apps detects shadow-AI exfiltration before it reaches a compliance event.

How EPC Group engages

Six-phase methodology applied to every engagement, compressed for fixed-fee accelerators and extended for full programs.

  1. Discovery — two-week assessment of the current estate, gap analysis, risk register, target architecture, costed remediation roadmap.
  2. Design — senior architect produces the target topology, identity framework, Conditional Access, Purview, governance model, and security posture, reviewed by client leads.
  3. Pilot — 25 to 100 user pilot in a real business unit. Migrate, apply baselines, test integrations, capture feedback.
  4. Wave rollout — migrate in waves of 500 to 2,500 users with communications, training, hypercare, and a per-wave retrospective.
  5. Adoption — role-based training, Champions network, executive sponsor enablement, metrics tracked against a measured baseline.
  6. Operate — optional managed-services retainer for license optimization, governance reviews, security monitoring, and quarterly business reviews.

Compliance-native, not bolted on

Zero governance audit failures across 11,000-plus enterprise engagements. HIPAA, SOC 2, FINRA, FedRAMP, and CMMC controls are engineered into the tenant on day one with audit-ready evidence. The regulated-industry posture is the baseline, not an upgrade tier.

Manufacturing and energy

For multi-plant manufacturers and energy operators, EPC Group integrates Microsoft 365 with operational technology, protects intellectual property through Purview labels and Endpoint DLP, and provisions frontline workers with F1 and F3 licensing patterns. Multi-region rollouts include data residency planning and offline-capable Power Platform apps for shop-floor environments.

Engagement models

Three engagement models cover most enterprise needs. Most clients start with a fixed-fee accelerator and grow into a full program or a managed-services retainer.

  • Fixed-fee accelerators — Copilot Readiness, Security Hardening, Tenant Health Check, SharePoint Migration, Teams Governance. Defined scope and price. Typical range $25,000 to $150,000 over four to twelve weeks.
  • Project engagements — full migration or governance program with milestone-based billing. Discovery through hypercare. Typical range $150,000 to $750,000-plus over three to nine months.
  • Managed services — tiered retainer for ongoing operations. Named senior architect on the account. From $3,500 per month with a twelve-month minimum.

Fixed-fee accelerators with real scope

Predictable scope, predictable price, predictable outcome. Copilot Readiness, Security Hardening, Tenant Health Check, SharePoint Migration, and Teams Governance ship as defined accelerators where Big 4 firms quote open-ended time-and-materials. Most projects land in the $25K-$150K range for accelerators or $150K-$750K for full programs.

Talk to a senior architect

30-minute discovery call. No pitch deck. Call (888) 381-9725 or schedule a discovery call and a senior architect responds within one business day.